We're dividing 21315964 by 555 
We want to figure out the number of times 21315964 can be divided by 555.

Step 1:
The number 555 fits into 2 0 times, leaving a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Take the next digit (1) from the dividend and append it to 2, then repeat: 21 / 555

Moving on to step 2:
When dividing 21 by 555, we get 0 with a remainder of 21.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 21 to get 21.
Bring next digit (3) of the dividend behind the 21 and repeat the process: 213 / 555

Let's proceed to step 3:
213 divided by 555 is 0 with a remainder of 213.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 213 after subtracting 0 from 213.
Grab the next digit (1) from the dividend, add it to 213, then carry on: 2131 / 555

Let's proceed to step 4:
The number 555 fits into 2131 3 times, leaving a remainder of 466.
Put 3 as the next digit of the answer. 
Result so far: 3.0
If we subtract 1665 from 2131, we get 466.
Include the next digit (5) from the dividend after 466, then repeat: 4665 / 555

Let's proceed to step 5:
555 can be fit into 4665 8 times, resulting in a remainder of 225.
Use 8 as the next digit of our solution. 
Result so far: 38.0
Deduct 4440 from 4665 and we're left with 225.
Grab the next digit (9) from the dividend, add it to 225, then carry on: 2259 / 555

Going ahead to step 6:
When dividing 2259 by 555, we get 4 with a remainder of 39.
Use 4 as the next digit of our solution. 
Result so far: 384.0
The remainder is 39 after subtracting 2220 from 2259.
Take the next digit (6) from the dividend and append it to 39, then repeat: 396 / 555

Let's proceed to step 7:
When dividing 396 by 555, we get 0 with a remainder of 396.
Write down 0 as next digit of the result. 
Result so far: 3840.0
Subtract 0 from 396 to get 396.
Take the next digit (4) from the dividend and append it to 396, then repeat: 3964 / 555

Let's proceed to step 8:
When dividing 3964 by 555, we get 7 with a remainder of 79.
Use 7 as the next digit of our solution. 
Result so far: 38407.0
Subtracting 3885 from 3964 leaves us with 79.
Since there are no more digits in the dividend, we add a zero to the remainder making it 790, and continue the process.

On to step 9:
If we divide 790 by 555, we get 1 and a remainder of 235.
Write down 1 as next digit of the result. 
Result so far: 38407.1
If we take 555 away from 790, we end up with 235.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2350, and continue the process.

Step 10:
When dividing 2350 by 555, we get 4 with a remainder of 130.
The next digit of our result is 4. 
Result so far: 38407.14
Subtracting 2220 from 2350 leaves us with 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1300, and continue the process.

Going ahead to step 11:
When dividing 1300 by 555, we get 2 with a remainder of 190.
Write down 2 as next digit of the result. 
Result so far: 38407.142
If we subtract 1110 from 1300, we get 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1900, and continue the process.

Going ahead to step 12:
The number 555 fits into 1900 3 times, leaving a remainder of 235.
Use 3 as the next digit of our solution. 
Result so far: 38407.1423
Subtracting 1665 from 1900 leaves us with 235.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2350, and continue the process.

Let's proceed to step 13:
555 can be fit into 2350 4 times, resulting in a remainder of 130.
Write down 4 as next digit of the result. 
Result so far: 38407.14234
If we subtract 2220 from 2350, we get 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1300, and continue the process.

Going ahead to step 14:
555 can be fit into 1300 2 times, resulting in a remainder of 190.
Write down 2 as next digit of the result. 
Result so far: 38407.142342
Deduct 1110 from 1300 and we're left with 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1900, and continue the process.

Moving on to step 15:
When dividing 1900 by 555, we get 3 with a remainder of 235.
Put 3 as the next digit of the answer. 
Result so far: 38407.1423423
Deduct 1665 from 1900 and we're left with 235.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2350, and continue the process.

Let's proceed to step 16:
555 can be fit into 2350 4 times, resulting in a remainder of 130.
The next digit of our result is 4. 
Result so far: 38407.14234234
Subtracting 2220 from 2350 leaves us with 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1300, and continue the process.

Our division results in 38407.14234234 with a remaining 1.3e-07.